The mum-of-three, who had been a familiar face on Australian television screens for decades, died “suddenly” at the age of 42, leaving behind a husband and three young daughters.

Plummer was known for her advertorials on TVSN and also appeared regularly on both Today Extra and Studio 10.

“For those of you who have been watching our show for many years, you would recognise longtime advertorial presenter Erin Jayne Plummer,” Campbell said on air this morning.

“Sadly, we heard the news yesterday that Erin Jayne had passed away, and she was just a beautiful person and a friend to many of our colleagues here at Today Extra.

“We just want to send our thoughts to her family and friends and show them some love and support at this really, really sad time.’”

“Much love to her husband and children, and may she now rest in peace,” a visibly emotional Jeffreys added.

Plummer’s “sudden” death was first announced by shattered colleagues Sarah Harris and Angela Bishop on Monday, with Harris confirming the Studio 10 program had “lost a little bit of sparkle”.

“For two decades, Erin Jayne has been a friendly and familiar face on Australian television, for a lot of that she’s been brightening up our mornings with her bubbly personality and megawatt smile,” an emotional Sarah Harris said yesterday.

“Erin was just a gorgeous human inside and out, and if it wasn’t for TV, Erin Jayne perhaps might have had a sporting career.

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“There is no question Erin Jayne was a high achiever and certainly a gold medal mum to her three young girls.

“We’ll miss your sunshine around the studio Erin Jayne, and all of us here are sending lots of love and strength to her family.”

A Facebook page has since been set up to pay tribute to Plummer, who lived on Sydney’s northern beaches, with scores of friends sharing photos and precious memories.

The page also announced a private memorial service would be held in Sydney on Wednesday, with the notice including the phone number of crisis support and suicide prevention organisation Lifeline.

“This group has been created to share our beautiful memories of an angel lost too soon. Our hearts have all been touched by Erin Jayne’s relentless passion and energy, so feel free to post photos, share stories or simply be connected,” the page’s organiser posted.

“Love you darling Ez, always the life of the party eating red frogs and drinking warm milk,” another wrote, while another added: “EJ was one of a kind. Caring, thoughtful, loved her family, and her girls were her world. As part of her advertorial world … we will never be the same again. The red frogs, the unpolitical [sic] correct conversations, the funny stories we all shared (goes on tour stays on tour). Love you EJ … see you in paradise. We’ll all get there one day. I’m just so sad that you needed to go so soon.”

“Please join me in lighting a candle for EJ today. Her light could never be replaced, but it will forever be remembered. Sending all my love from Queensland,” another posted.

Others shared treasured photos of Ms Plummer over the years, including one of her in a mermaid costume as well as pictures from her school days and clips of her on-air appearances.

Meanwhile, a GoFundMe page has also been created to raise money for Ms Plummer’s family.

Ms Plummer was “discovered” at Manly Beach and appeared in an international tourism campaign, before becoming one of the faces of Aerobics Oz Style, which was watched by 40 million people across the globe.

The fact was shared by Plummer with the program in 2016 when it hosted a special Aerobics Oz Style reunion.

Plummer also had hosting roles on MTV, Guest TV, TVSN, Totally Active TV, The Morning Show and Channel 10 Sport for the Nutri-Grain Ironman Series.

She featured in commercials for SunRice, Gatorade, Sony Wega, Razzamatazz, Australian Tourism, Allens Lollies and Subaru.

Plummer had a degree in journalism and previously worked as an editor at Horwitz magazines. During the 2000 Olympics she was the Press Information Specialist for the Sydney Organising Committee for the Olympic Games at the Aquatic Centre.

She was also a talented athlete, representing Australia in surf life saving and synchronised swimming.